conver git to svn - python

import sys,os,subprocess


def get_file_mode_change (branch1, branch2):
    cmd = 'git diff --summary ' + branch1 + '..' + branch2 + ' | grep "mode change" | ' + " awk '{ print $6 }' "
    output =  subprocess.check_output (cmd, shell=True)
    return output.splitlines()

def get_file_deleted (branch1, branch2):
    cmd = 'git diff --name-status ' + branch1 + '..' + branch2 + ' | grep "^D" | ' + " awk '{ print $2 }' "
    output =  subprocess.check_output (cmd, shell=True)
    return output.splitlines()

def is_content_same (branch1, branch2):
    cmd = 'git diff ' + branch1 + '..' + branch2 + ' --exit-code > /dev/null 2>&1';
    return not subprocess.call(cmd, shell=True)

def mina(nn, retry=3):
    if nn < 5:
        return True
    if retry < 0:
        return False
    nn = nn + 1;
    return mina (nn, retry-1)



if __name__ == '__main__':
    print str(sys.argv[1])
    commit = sys.argv[1]

    aa = mina(5, 2)
    print aa

    if aa:
        print "true"
    else:
        print "false"


    time.sleep(5);
    raise Exception("=====");

    os.chdir("adaptation_resilience")

    export_branch = "pppp_" + commit

## update svn
    cmd = 'git svn fetch svn'
    print cmd
    print subprocess.check_output (cmd, shell=True)

## reset up_branch
    cmd = 'git checkout up_branch'
    print subprocess.check_output (cmd, shell=True)
    cmd = 'git reset --hard ' + commit
    print subprocess.check_output (cmd, shell=True)

## create import branch
    cmd = 'git checkout -b ' +  export_branch + ' git-svn '
    print subprocess.check_output (cmd, shell=True)

    msg_commit = " = commit == " + commit
    count_commit = 0;


### check file mode change
    files_mode  = []
    file_mode = get_file_mode_change("", "up_branch")
    if file_mode:
        print " ======= file mode changed ====== "
        for file in file_mode:
            cmd = 'git checkout up_branch -- ' + file
            print subprocess.check_output (cmd, shell=True)
        cmd = 'git commit -m "' + msg_commit + ' ++ file mode change"'
        print subprocess.check_output (cmd, shell=True)
        count_commit = count_commit + 1

### check file deleted
    file_deleted = []
    file_deleted = get_file_deleted("", "up_branch")

    if file_deleted:
        print "======== file deleted ========"
        for file in file_deleted:
            cmd = 'git rm ' + file
            print subprocess.check_output (cmd, shell=True)
        cmd = 'git commit -m "' + msg_commit + ' ++ deleted file"'
        print subprocess.check_output (cmd, shell=True)
        count_commit = count_commit + 1

## merge all commit above into one git commit
    cmd = 'git merge --strategy=recursive -X theirs ' + commit + ' -m "' + msg_commit + ' merge " '
    print subprocess.check_output (cmd, shell=True)

    if count_commit > 0:
        count_commit = count_commit + 1;
        cmd = 'git reset --soft HEAD~' + str(count_commit)
        print subprocess.check_output (cmd, shell=True)
        cmd = 'git commit -m "' + msg_commit + ' ++ merged ++' + str(count_commit) + ' "'
        print subprocess.check_output (cmd, shell=True)

### check if branch same
    if is_content_same (export_branch, "up_branch"):
        print "======= ALL is OK ======== do svn commit =====" + commit + "===="
        cmd = 'git svn dcommit --no-rebase '
        print subprocess.check_output (cmd, shell=True)
        print "======= Successfully " + commit + "===="
    else:
        raise Exception(" Error: ***** still has difference **** on  " + commit + "  ")

### svn update and check
###    cmd = 'git svn fetch svn'
###    print cmd
###    print subprocess.check_output (cmd, shell=True)
###
###    if is_content_same ("git-svn", "up_branch"):
###        print " ======== update successfully  ====="
###    else:
###        print " Error ******************** "
###